io_virtual_1-Get_Subset_from_Virtual_Point_Cloud

Get Subset from Virtual Point Cloud

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contributed at 2018-06-22

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Geography SubjectGIScience & Remote SensingData Management

Detailed Description

The tool allows one to retrieve a point cloud from a virtual point cloud dataset by applying the provided area-of-interest (AOI). The extent of the AOI can be provided either as polygon shapefile, grid or by coordinates. Optionally, an overlap can be added to the AOI and a spcvf tile info file can be outputted. The latter can be used to remove the overlap later.In case an overlap is used and the AOI is provided as polygon shapfile, only the bounding boxes of the polygons are used.With polygon shapefiles additional functionality is available:* in case one or more polygons are selected, only the selected polygons are used.* in case the shapefile contains several polygons and the 'One Point Cloud per Polygon' parameter is checked, a point cloud dataset is outputted for each polygon. In case the 'Tilename' attribute is provided, the output files are named by this attribute. Otherwise the output file names are build from the lower left coordinate of each tile.The derived datasets can be outputted either as point cloud list or written to an output directory. For the latter, you must provide a valid file path with the 'Optional Output Filepath' parameter.Optionally, the query can be constrained by providing an attribute field and a value range that must be met.A virtual point cloud dataset is a simple XML format with the file extension .spcvf, which can be created with the 'Create Virtual Point Cloud Dataset' tool.

How to cite

SAGA (2018). io_virtual_1-Get_Subset_from_Virtual_Point_Cloud, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/b2eb1aad-350b-4a5d-8fe4-0e43622a9888
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contributed at 2018-06-22

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